" (vi) "sin[(1)/(2)cos^(-1)(4)/(5)]

To get the silicone R_(3)Si-(OSiR_(2))_(n)-SiR_(3) having 4Si-O-Si linkage, the unit taken is:

To get the silicone R_(3)Si-(OSiR_(2))_(n)-SiR_(3) having 4Si-O-Si linkage, the unit taken is:

The structure and hybridisation of Si in Si(CH_(3))_(4) is

The catenation tendency of C, Si and Ge is in the order Ge lt Si lt C . The bond energies (in kJ mol^(-1) ) of C-C, Si-Si and Ge-Ge bonds, respectively, are

The catenation tendency of C, Si , and Ge is in the order Ge lt Si lt C . The bond energies (in kJ mol^(-1) ) of C-C-, Si-Si , and Ge-Ge bonds, respectively, are

The silicons ae organosilicon polymers containing Si-O-Si linkage. They are usually prepared by hydrolysis of alkylchlorosilanes, the silanols formed as intermediates on hydrolysis condense by intermolecular elimination of water with the formation of Si-O-Si linkage underset(-O-Si(CH_(3))_(2)-O-Si(CH_(3))-O-Si(CH_(3))_(2)-O-)underset(|)underset(O)underset(|)(-O-Si(CH_(3))_(2)-O-Si(CH_(3))-O-Si(CH_(3))_(2)-O-) The above silicone can be obtained by hydrolysis of which of the following ?

Si is refined by

Si is refined by